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Пояснение.
Решение.
\[\textbf{а)}\left( \text{mn} \right)^{5} = m^{5} \cdot n^{5}\]
\[\textbf{б)}\ \left( \text{xyz} \right)^{2} = x²y²z²\]
\[\textbf{в)}\ ( - 3y)^{4} = ( - 3)^{4} \cdot y^{4} = 81y^{4}\]
\[\textbf{г)}\ ( - 2ax)^{3} = ( - 2)³ \cdot a³x³ =\]
\[= - 8a³x³\]
\[\textbf{д)}\ (10xy)^{2} = 10²x²y² =\]
\[= 100x²y²\]
\[\textbf{е)}\ ( - 2abx)^{4} = ( - 2)^{4}a^{4}b^{4}x^{4} =\]
\[= 16a^{4}b^{4}x^{4}\]
\[\textbf{ж)}\ ( - am)^{3} = ( - a)^{3} \cdot m³ =\]
\[= - a³m³\]
\[\textbf{з)}\ ( - xn)^{4} = ( - x)^{4} \cdot n^{4} = x^{4} \cdot n^{4}\ \]